SeaTac, WA Profile: Facts, Map & Data

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SeaTac, Washington - Basic Facts

The City of SeaTac had a population of 29,478 as of July 1, 2017. SeaTac ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Washington. See peer rankings below.

The primary coordinate point for SeaTac is located at latitude 47.4434 and longitude -122.2983 in King County. The formal boundaries for the City of SeaTac (see map below) encompass a land area of 10.03 sq. miles and a water area of 0.17 sq. miles. King County is in the Pacific time zone (GMT -8). The elevation is 269 feet.

The City of SeaTac (GNIS ID: 2411855) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Washington is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of SeaTac is located within Seattle Division of King County.

Beneath the boundary map are tables with SeaTac population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.


Neighborhood Data

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City of SeaTac, WA Boundary Map



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SeaTac, WA Data & Demographics (As of July 1, 2017)

POPULATION

Total Population 29,478
Daytime Population: Workers 19,647
Daytime Population: Residents 15,468
Total Daytime Population (TDP) 35,115
Ratio TDP/Total Population1 1.19
Population in Households 28,649
Population in Familes 22,117
Population in Group Qrtrs 829
Population Density2 2,939
Diversity Index3 85
 

INCOME

Median Household Income $50,751
Average Household Income $63,797
Per Capita Income $22,973

HOUSING

Total Housing Units 10,994 (100%)
Owner Occupied HU 5,324 (48.4%)
Renter Occupied HU 4,970 (45.2%)
Vacant Housing Units 701 ( 6.4%)
Median Home Value $278,189
Average Home Value $316,227
 

HOUSEHOLDS

Total Households 10,293
Average Household Size 2.78
Family Households 6,452
Average Family Size 3
NOTES
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.

GROWTH RATE / YEAR

2010-2017 2017-2022
Population 1.27% 1.26%
Households 1.06% 1.14%
Families 1.21% 1.19%
Median Household Income   1.83%
Per Capita Income   2.36%

SeaTac, WA - Peer Comparisons by Rank and Percentile

The table below compares SeaTac to the other 627 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 43 93rd
Population Density # 91 86th
Diversity Index # 12 98th
Median Household Income # 404 36th
Per Capita Income # 498 21st

Additional comparisons and rankings can be made with a VERY EASY TO USE Washington Census Data Comparison Tool.

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